LM10692 Datasheet, PDF (1/48 Pages) Texas Instruments – LM10692 Power Management Unit for SandForce SF3700 SSD Controllers

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LM10692
SNVSA53 – JULY 2014
LM10692 Power Management Unit for SandForce SF3700 SSD Controllers
1 Features
•1 Six High-efficiency Programmable Buck
Regulators:
– Integrated FETs with Low RDSon
– Bucks Operate Phase Shifted to Reduce the
Input
– Current ripple And Capacitor Size
– Output Voltage Programmable via Serial
interface
– Under and Over Voltage Lock-out
– Automatic Internal Soft Start
– Output Current Overload and Thermal
Shutdown Protection
– Active Discharge for Fast Discharge of Output
Voltage When Buck is Disabled
• I2C Compatible Serial Interface, up to 1 MHz
• Power-On-Reset Output with Delay and Input
Voltage Trigger
• Independent Enable Input Pins and Power Good
output Pins for Control of Always-On (AON) and
Core Power (CPE) Rails
• RMY Package Size 5.00 mm x 5.00 mm x 0.9 mm
(NOM)
• Key Specifications
– Single Input Rail with Wide Range: 2.5 V to 4.0
V
– Programmable Output Voltage:
– Buck1: 1.75 V to 3.3 V, 2.5 A
– Buck2: 1.0 V to 2.55 V, 200 mA
– Buck3: 0.8 V to 2.35 V, 200 mA
– Buck4: 0.8 V to 2.35 V, 2.5 A
– Buck5: 0.8 V to 1.575 V, 0.8 A
– Buck6: 0.8 V to 1.575 V, 2.5 A
– Buck1 Configurable as Bypass Switch (No
Inductor)
– ±1% Feedback Voltage Accuracy
– Up to 95% Peak efficiency Buck Regulators
– 2 MHz Switching Frequency For Smaller
Inductor Size
2 Applications
• Optimized for Use in SSDs
• Embedded Systems: SoCs, ASICs, and
Processors
3 Description
The LM10692 is an advanced PMU containing six
configurable, buck regulators for supplying power to
advanced Flash Controllers in solid-state drives
(SSDs). The device is ideal for use in solid state drive
designs. The LM10692 communicates with the
SF3700 Flash Controller via an I2C compatible
interface and digital I/O pins to optimize power
consumption with power saving modes.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LM10692
QFN (36)
5.00 mm × 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Power
Supply
2.5V - 5.5V
22 μF
2.2 μF
4.7 μF
4.7 μF
10 μF
10 μF
10μF
Typical Application
LM10692 IO_VIN
1.8V_AON
SSD
Controller
EN_AON
VIN_MODE
AVIN
AGND
B1_VIN
PGND
B2_VIN
B3_VIN
PGND
B4_VIN
B5_VIN
B6_VIN
PGND
EN_CPE
PG_AON
PG_CPE
PFAIL
SDA
I2C
SCL
B1_SW
BUCK1
B1_FB
B2_SW
BUCK 2
B2_FB
B3_SW
BUCK 3
B3_FB
B4_SW
BUCK 4
B4_FB
B5_SW
BUCK 5
B5_FB
B6_SW
BUCK 6
B6_FB
Bypass Mode 2.5A
22 μF
2.2 μH
2.5V/200mA
10 μF
1.8V/200mA
2.2 μH
10 μF
1.8V/2.5A
1.0 μH
22 μF
1.1V/800mA
2.2 μH
10 μF
1.1V/2.5A
1.0 μH
22 μF
System
Control
2.5V AON
1.8V AON
1.8V IO
1.1V AON
1.1V CORE
Flash
2.85V / 3.3V
1.8V IO
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.